Generate a Random Value between Two Limits
Duarte Farrajota Ramos came up with a better suggestion with the Object Info > Random value.  Then you just run it into a standard linear interpolation function t*(a-b)+b.  If you're feeding in random numbers 0..1 it does not matter whether a&lt;b or a&gt;b.  You still get a value in the range a..b.



The extra nodes at the bottom with the vector coordinate going into the noise texture will give you a solid color, but it will be identical on all objects that use that material.